googlemaps gmaps

Hi

Using the CCK, location, views, gmap and Gmap_location modules, I have 2 main problems;

1. I CANNOT find a way to set the 'latitude & longitude' fields as 'required' on a CCK form

2. Is there any way for these Location and Gmap modules to work together to 'validate' each other and not allow bizarre types of location data into a node type? (E.g. not allowing to form to save something like city: London, country: USA, GEO co-ordinates: tokyo)

This is what i have done...

I have installed the following modules: Location, Gmap, Gmap location, CCK, views.

Hi all, newbie question.

I would like to add maps to my drupal site. The maps would be configured dynamically depending on the particular user query, eg "show me all parks in France" or "show me all libraries within 50 miles of my home".

I am trying to understand the best way to implement googlemaps on my site.
Would it be better to code directly with the googlemaps api?
Or better to use the gmaps+locations modules?